19031740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10457}}^1$

素因数の和:10486

約数の個数: 48

約数和(自身を含む): 49194432

約数和(自身を除く): 30162692

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10457, 20914, 41828, 52285, 73199, 104570, 135941, 146398, 209140, 271882, 292796, 365995, 543764, 679705, 731990, 951587, 1359410, 1463980, 1903174, 2718820, 3806348, 4757935, 9515870, 19031740]

約数ペア:

[(1, 19031740), (2, 9515870), (4, 4757935), (5, 3806348), (7, 2718820), (10, 1903174), (13, 1463980), (14, 1359410), (20, 951587), (26, 731990), (28, 679705), (35, 543764), (52, 365995), (65, 292796), (70, 271882), (91, 209140), (130, 146398), (140, 135941), (182, 104570), (260, 73199), (364, 52285), (455, 41828), (910, 20914), (1820, 10457)]